1. Product Overview
The MTX WET77-W Wet Series 7.7" Coaxial Speakers are designed for marine and outdoor environments, offering robust audio performance. These speakers are built to withstand harsh conditions, featuring water-resistant components and UV-inhibited grilles, making them suitable for boats, UTVs, and other off-road vehicles.
Image 1.1: Overview of the MTX WET77-W speaker bundle, including three pairs of speakers and a Creative Audio coozy.
Key Features:
- Weather Resistant Polypropylene Cones: Ensures durability and performance in wet conditions.
- ASA Plastic Grille with UV Inhibitor: Protects against sun damage and fading.
- Sealed ABS Basket: Provides protection for internal motor structure.
- Silicone Insulated Tinsel Leads: Enhances longevity and reliability.
- IP67 Rated: Weather resistant when mounted in a sealed enclosure.
- 7.7" Coaxial Design: Delivers full-range audio.
- 75W RMS Power Handling: Capable of robust sound output.
2. Safety Information
Please read all safety instructions carefully before installing and operating the speakers. Failure to follow these guidelines may result in injury or damage to the equipment.
- Professional Installation Recommended: For optimal performance and safety, professional installation is advised, especially in marine environments.
- Power Source: Ensure the power source (amplifier) is turned off before making any connections to prevent electrical shock or damage.
- Wiring: Use appropriate gauge wiring for connections. Incorrect wiring can lead to overheating or malfunction.
- Mounting: Securely mount speakers to prevent detachment during vehicle operation. Ensure mounting location does not interfere with vehicle's structural integrity or wiring.
- Water Exposure: While weather-resistant, avoid direct high-pressure water spray or submersion unless explicitly stated for the specific mounting configuration.
- Volume Levels: Prolonged exposure to high volume levels can cause hearing damage. Adjust volume to a comfortable level.
3. Package Contents
Verify that all items are present in the package before beginning installation:
- 3 Pairs (6 total) MTX WET77-W 7.7" Coaxial Speakers
- Mounting Hardware (screws, clips, etc. - specific to model)
- Creative Audio Coozy (promotional item)
- User Manual (this document)
4. Installation Guide
Proper installation is crucial for optimal performance and longevity of your MTX WET77-W speakers. If you are unsure about any step, consult a professional installer.
4.1 Mounting Considerations
- Choose Location: Select a suitable mounting location that provides adequate space and structural support. The speakers can be mounted in factory locations or easily added to existing spaces or pods.
- Measure and Cut: Carefully measure the desired mounting area. The required woofer cut-out diameter is 6.26 inches. Use appropriate tools to create a clean, circular opening.
Image 4.1: Front view of the speaker without grille, illustrating the cone and tweeter for cutout reference.
- Check Mounting Depth: Ensure there is sufficient clearance behind the mounting surface. The woofer mounting depth is 3.03 inches.
Image 4.2: Side profile of the speaker, highlighting the mounting depth and terminal connections.
- Secure Mounting: Insert the speaker into the opening and secure it using the provided mounting hardware. Ensure a snug fit to prevent vibrations and ensure proper sound quality.
4.2 Wiring Connections
The WET77-W speakers have a 4Ω impedance. Connect them to an amplifier capable of handling this load.
- Identify Terminals: Locate the positive (+) and negative (-) terminals on the back of each speaker. These are typically marked.
Image 4.3: Rear view of the speaker, showing the magnet and terminal connections for wiring.
- Connect to Amplifier: Connect the positive (+) terminal of the speaker to the positive (+) output of your amplifier. Connect the negative (-) terminal of the speaker to the negative (-) output of your amplifier.
- Ensure Polarity: Maintain correct polarity for all speakers in your system to ensure proper sound imaging and bass response.
- Secure Connections: Ensure all wire connections are secure and free from shorts. Use marine-grade connectors if installing in a wet environment.
5. Operation
Once installed and wired correctly, operating your MTX WET77-W speakers is straightforward.
5.1 Initial Power-Up
- Before turning on your audio system, ensure all connections are secure and correct.
- Start with the amplifier's volume control at its lowest setting.
- Turn on your audio source (head unit, receiver) and then your amplifier.
- Slowly increase the volume to a comfortable listening level.
5.2 Audio Adjustment
- Adjust bass, treble, and balance settings on your audio source or amplifier to achieve desired sound quality.
- Avoid excessive bass or treble boost, which can lead to distortion or damage at high volumes.
- If distortion is heard, reduce the volume immediately to prevent speaker damage.
6. Maintenance
Regular maintenance will help ensure the longevity and performance of your MTX WET77-W speakers.
- Cleaning: Clean the speaker grilles and cones periodically with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners.
- Inspection: Periodically inspect the speaker cones, grilles, and wiring for any signs of wear, damage, or corrosion, especially after exposure to saltwater or extreme weather.
- Connection Check: Ensure all electrical connections remain tight and free of corrosion.
- UV Protection: While the grilles have UV inhibitors, prolonged direct sun exposure can still affect materials over time. Consider covering speakers when not in use for extended periods in direct sunlight.
7. Troubleshooting
This section addresses common issues you might encounter with your speakers.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound from Speaker(s) |
|
|
| Distorted Sound |
|
|
| Intermittent Sound |
|
|
8. Technical Specifications
| Specification | Value |
|---|---|
| Model Name | MTXBDL210412-18 |
| Speaker Type | Coaxial |
| RMS Power Handling | 75W |
| Impedance | 4Ω |
| Frequency Response | 50Hz - 20kHz |
| Cone Material | Polypropylene |
| Grille Included | Yes |
| Woofer Mounting Depth | 3.03 inches |
| Woofer Cut Out Diameter | 6.26 inches |
| Weather Resistance | IP67 Rated (when mounted in sealed enclosure) |
| Item Weight | 24 Pounds (total for bundle) |
| Package Dimensions | 24.13 x 13 x 11.25 inches |
| UPC | 841992160941 |
9. Warranty and Support
MTX Audio products are designed for reliability and performance. For specific warranty details and duration, please refer to the warranty card included with your purchase or visit the official MTX Audio website.
If you encounter any issues or require technical assistance, please contact MTX Audio customer support through their official channels. Provide your product model number (MTXBDL210412-18) and purchase details when seeking support.
For more information, visit the MTX Store on Amazon.
